New code for 5.6:
- Get rid of compat_time_t
- Convert time_t to time64_t in quota code
- Remove shadow variables
- Prevent ATTR_ flag misuse in the attrmulti ioctls
- Clean out strlen in the attr code
- Remove some bogus asserts
- Fix various errors with 32-bit kernels
- Pack xfs_dir2_sf_entry_t to fix build errors on arm oabi
xfs: Add __packed to xfs_dir2_sf_entry_t definition

xfs_check_ondisk_structs() verifies that the sizes of the data types
used by xfs are correct via the XFS_CHECK_STRUCT_SIZE() macro.

Since the structures padding can vary depending on the ABI (e.g. on
ARM OABI structures are padded to multiple of 32 bits), it may happen
that xfs_dir2_sf_entry_t size check breaks the compilation with the
assertion below:

In file included from linux/include/linux/string.h:6,
                 from linux/include/linux/uuid.h:12,
                 from linux/fs/xfs/xfs_linux.h:10,
                 from linux/fs/xfs/xfs.h:22,
                 from linux/fs/xfs/xfs_super.c:7:
In function ‘xfs_check_ondisk_structs’,
    inlined from ‘init_xfs_fs’ at linux/fs/xfs/xfs_super.c:2025:2:
linux/include/linux/compiler.h:350:38:
    error: call to ‘__compiletime_assert_107’ declared with attribute
    error: XFS: sizeof(xfs_dir2_sf_entry_t) is wrong, expected 3
    _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)

Restore the correct behavior adding __packed to the structure definition.

Cc: Darrick J. Wong <darrick.wong@oracle.com>
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
1 file changed